HR Generalist

Company Overview: TENEX is an AI-native, automation-first, built-for-scale Managed Detection and Response (MDR) provider. We are a force multiplier for defenders, helping organizations enhance their cybersecurity posture through advanced threat detection, rapid response, and continuous protection. Our team is composed of industry experts with deep experience in cybersecurity, automation and AI-driven solutions. Backed by leading investors, we are rapidly growing and seeking top talent to join our mission of revolutionizing the AI-Native MDR landscape. We’re a fast growing startup backed by industry experts and top tier investors led by Crosspoint Capital Partners and also backed by Shield Capital, DTCP (formerly Deutsche Telekom Capital Partners), Deepwork Capital, and the Florida Opportunity Fund. Seed round led by Andreessen Horowitz (a16z). As an early employee, you’ll play a meaningful role in defining and building our culture. Get in on the ground floor. We’re a small but well-funded team that just raised a substantial round – joining now comes with limited risk and unlimited upside. Culture is one of the most important things at TENEX.AI—explore our culture deck at culture.tenex.ai to witness how we embody it, prioritizing the irreplaceable collaboration and community of in-person work. Location: This role will require onsite in our Overland Park, KS location. We're growing fast and adding to our People Operations team. We're looking for an HR Generalist in our Overland Park office to own our payroll, benefits and employer tax administration. You'll bring experience we can learn from and tell us when there's a better way to run things. This is a generalist role where most of your week goes to payroll, benefits and tax however Rippling makes this easy, but we will need someone to manage. You're also someone people can bring any HR question to, and are team player at your core What you'll own

• US benefits administration. Manage our benefit plans: enrollments, life events, open enrollment, carrier and broker coordination, COBRA, and benefits compliance.

• Monthly benefits reconciliation. Reconcile carrier invoices against enrollment and payroll deductions every month, and resolve the discrepancies.

• Generalist coverage. Field employee questions, support onboarding and offboarding, and back up office operations when needed.

• US payroll, end to end. Run multi-state payroll in Rippling accurately and on time, including off-cycles, garnishments, payroll audits and year-end (W-2s, reconciliations).

• Employer tax accounts. Register and maintain state withholding and unemployment accounts as we grow into new states. Handle filings, rate notices and agency correspondence.

• International payroll support. Help with payroll inputs and employee questions for team members employed through our Employer of Record (EOR) partner in Rippling.

• Process and scale. Document, automate and improve how we do payroll, benefits and tax. Bring the playbook we don't have yet.

What you bring

• 3–5+ years of hands-on US payroll and benefits administration, multi-state highly preferred.

• Experience setting up and maintaining state payroll tax registrations (SIT/SUI) and handling agency notices.

• Experience owning benefits administration and monthly invoice reconciliation.

• A high bar for accuracy and confidentiality, and the judgment to know when something looks wrong.

• Comfort working in a fast-moving startup where some processes don’t exist yet and building it is part of the job.

Bonus points

• Rippling payroll and benefits experience (strongly preferred)

• You've helped a company move off a PEO

• EOR or global payroll exposure

• Broader generalist experience across employee relations, leave administration and HR compliance

• You've worked in a high-growth tech company

Education & Certifications

• Associate's or Bachelor’s degree in Human Resources or a related field (or equivalent experience).

Why Join Us?

• Opportunity to work with cutting-edge AI-driven cybersecurity technologies and Google SecOps solutions.

• Collaborate with a talented and innovative team focused on continuously improving security operations.

• Competitive salary and benefits package.

• A culture of growth and development, with opportunities to expand your knowledge in AI, cybersecurity, and emerging technologies.